Multiple choice

Macro molecule chitin is:

  1. simple polysaccharide

  2. nitrogen containing polysaccharide

  3. phosphorus containing polysaccharide

  4. sulphur containing polysaccharide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Chitin is a nitrogen-containing polysaccharide composed of N-acetylglucosamine units. The nitrogen comes from the acetyl group attached to each sugar molecule. Simple polysaccharides (like starch) contain only carbon, hydrogen, and oxygen, while chitin's nitrogen makes it chemically distinct and structurally stronger.

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